The conditions present us with what seems to be a paradox, on the first day of spring - the Met Office warning members of the public to take care in potentially icy conditions because of the low temperatures.
The Met Office was warning of a risk of ice after temperatures dropped to -6C (21F) overnight.
"The Met Office is warning of widespread ice this morning, " said BBC Wales weather presenter Sue Charles.
Heavy snow is falling in Wales, where a rare Met Office red warning for severe disruption has been issued.
The Met Office is warning of icy roads across much of the UK. Central Scotland police advise essential journeys only.
More snow is possible overnight, especially in the east of the county, and the Met Office is warning of ice on untreated surfaces.
The Met Office snow warning for north east Wales is in place from 09:00 GMT on Friday with the possibility of travel disruption.
There is a Met Office yellow warning - meaning be prepared - for snow in Carmarthenshire, Bridgend, Swansea, Neath Port Talbot, Cardiff and Rhondda Cynon Taf.
BBC: Wales snow: Hazardous road conditions as snow moves west
"During the past 12 months we have experienced both drought and floods and the Met Office is warning there may be more extremes of weather in the future, " he said.
Environment Agency flood warnings for the Rivers Frome, Avon, and Stour remained in place, along with a Met Office yellow weather warning.
The Met Office said a yellow warning for severe weather remained in place but the snow would ease off throughout the day.
The Met Office issued a weather warning for the East Midlands with some parts of the region expecting up to 10cm (4ins) of snow.
BBC: East Midlands Airport suspends flights as weather worsens
The Met Office issued a weather warning for the East Midlands with some parts of the region getting up to 10cm (4ins) of snow.
The Met Office said a yellow warning for snow was in place, and the afternoon snow was set to be more persistent than the morning's flurries.
The Met Office has issued a warning of widespread ice in Bedfordshire, Buckinghamshire and Hertfordshire as temperatures are expected to remain at freezing level throughout the day.
Heavy snow is expected in Leicestershire, with an aamber warning issued by the Met Office.
The Met Office has issued a yellow warning of ice for the region for Tuesday.
The Met Office has issued an amber warning for Lancashire, Greater Manchester and Merseyside.
The Met Office issued a rare red warning warning of snow and blizzards on Thursday.
The Met Office has issued a yellow warning with gales of up to 60mph forecast to hit exposed regions.
BBC: Fen Blow phenomenon: Farmers concerned as winds threaten
Motorists in Herefordshire are being warned to expect more snow as the Met Office issued a yellow weather warning.
The Met Office has issued a yellow warning of icy conditions across the counties with temperatures falling well below freezing.
The Met Office has issued a yellow warning for severe weather in the West Midlands with temperatures expected to remain near freezing.
The storms in the early hours of Tuesday followed a weather warning issued by the Met Office for parts of south-east England.
The Met Office has issued a yellow warning of snow and ice for the West Midlands, advising traffic conditions may be difficult and dangerous.
The Met Office has issued an early warning of severe weather, with further rain and showers forecast to sweep across the Yorkshire and Humber region throughout the weekend.
BBC: NEWS | UK | England | South Yorkshire | Charles visits flood-hit region
The Met Office has issued an amber warning for the West Midlands and said sleet and snow will spread across the area throughout the afternoon with heavy rain expected to follow overnight.
The Met Office has issued a yellow warning for parts of the West Country, Midlands, east and north-east England , urging the public to be prepared for isolated heavy and thundery downpours.
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